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Q. |
A wave equation is y=0.1sin[100πt-kx] and wave velocity is 100m/s, its number is equal to |
A. | 1/m |
B. | 2/m |
C. | π/m |
D. | 2π/m |
Answer» C. π/m | |
Explanation: y=0.1sin[100πt-kx] y=asin(ωt-kx) |
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